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BR8102985A - Dispositivo de transmissao de sinais comportando um circuito de pre-correcao de produtos de nao linearidade - Google Patents

Dispositivo de transmissao de sinais comportando um circuito de pre-correcao de produtos de nao linearidade

Info

Publication number
BR8102985A
BR8102985A BR8102985A BR8102985A BR8102985A BR 8102985 A BR8102985 A BR 8102985A BR 8102985 A BR8102985 A BR 8102985A BR 8102985 A BR8102985 A BR 8102985A BR 8102985 A BR8102985 A BR 8102985A
Authority
BR
Brazil
Prior art keywords
behavioring
transmission device
signal transmission
correction circuit
linearity
Prior art date
Application number
BR8102985A
Other languages
English (en)
Inventor
C Cluniat
Original Assignee
Lgt Labor Gen Des Telecommunic
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lgt Labor Gen Des Telecommunic filed Critical Lgt Labor Gen Des Telecommunic
Publication of BR8102985A publication Critical patent/BR8102985A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3252—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using multiple parallel paths between input and output
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/06—Control of transmission; Equalising by the transmitted signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
BR8102985A 1980-05-14 1981-05-13 Dispositivo de transmissao de sinais comportando um circuito de pre-correcao de produtos de nao linearidade BR8102985A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8010847A FR2482799A1 (fr) 1980-05-14 1980-05-14 Dispositif de precorrection de produits de non linearite et systeme de transmission de signaux de television comportant de tel dispositif

Publications (1)

Publication Number Publication Date
BR8102985A true BR8102985A (pt) 1982-02-02

Family

ID=9241994

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8102985A BR8102985A (pt) 1980-05-14 1981-05-13 Dispositivo de transmissao de sinais comportando um circuito de pre-correcao de produtos de nao linearidade

Country Status (6)

Country Link
US (1) US4392252A (pt)
EP (1) EP0040127B1 (pt)
BR (1) BR8102985A (pt)
DE (1) DE3164544D1 (pt)
FR (1) FR2482799A1 (pt)
MX (1) MX154909A (pt)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3142203A1 (de) * 1981-10-24 1983-05-26 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Entzerrer
FR2517914B1 (fr) * 1981-12-07 1986-02-07 Labo Cent Telecommunicat Equipement de retransmission de signal de television en voie commune, a commande automatique du rapport image/son
FR2520572B1 (fr) * 1982-01-28 1986-01-17 Lgt Lab Gen Telecomm Systeme de correction de non-linearites par premodulation en frequences intermediaires dans un equipement de television
JPS6025310A (ja) * 1983-07-22 1985-02-08 Fujitsu Ltd Ｓｓｂ多重無線装置用ｆｅｔ直線電力増幅装置
FR2553947B1 (fr) * 1983-10-21 1985-12-13 Lgt Lab Gen Telecomm Dispositif de precorrection automatique des non-linearites dans une chaine d'amplification de puissance et emetteur de television comportant un tel dispositif
DE3445915C2 (de) * 1984-01-09 1994-09-29 Hewlett Packard Co Hochfrequenz-Netzwerkanalysator
NL8402613A (nl) * 1984-08-28 1986-03-17 Hollandse Signaalapparaten Bv Inrichting voor het combineren van de uitgangssignalen van meerdere op eenzelfde frequentie afgestemde zendeenheden.
IT1178599B (it) * 1984-10-31 1987-09-09 Gte Communication Syst Predistorcitore a tre vie a fondamentale soppressa
DE3522408A1 (de) * 1985-06-22 1987-01-02 Ant Nachrichtentech Arbeitspunktstabilisierter linearisierter wanderfeldroehrenverstaerker
GB2204202B (en) * 1987-04-28 1991-11-27 Racal Communications Equip Radio transmitters
GB2211045B (en) * 1987-10-10 1991-08-21 Marconi Co Ltd Linearity adjusting circuit
US4992754B1 (en) * 1989-09-07 1997-10-28 Ortel Corp Predistorter for linearization of electronic and optical signals
JPH07101820B2 (ja) * 1989-12-27 1995-11-01 三菱電機株式会社 低歪高周波増幅装置
US5081425A (en) * 1990-05-24 1992-01-14 E-Systems, Inc. Vswr adaptive power amplifier system
GB2257860B (en) * 1991-07-06 1995-09-20 Racal Communications Syst Ltd Amplification systems
GB2265270B (en) * 1992-03-02 1996-06-12 Motorola Ltd Rf power amplifier with linearization
FR2693065A1 (fr) * 1992-06-26 1993-12-31 Thomson Lgt Dispositif d'amplification de puissance d'un signal composite.
FR2719954B1 (fr) * 1994-05-11 1996-06-21 Alcatel Espace Linéarisateur à prédistorsion large bande et auto compensé en température pour amplificateur hyperfréquence.
US5815038A (en) * 1995-04-28 1998-09-29 Mitsubishi Denki Kabushiki Kaisha Distortion compensation circuit
US5606286A (en) * 1995-07-27 1997-02-25 Bains; Devendar S. Predistortion linearization
US5942939A (en) * 1998-06-01 1999-08-24 Motorola, Inc. Amplifier and method of canceling distortion by combining hyperbolic tangent and hyperbolic sine transfer functions
IT1312224B1 (it) 1999-03-23 2002-04-09 Cit Alcatel Circuito pre/post-distorcitore particolarmente per sistemi aradiofrequenza microonde.
US6097250A (en) * 1999-04-22 2000-08-01 Scientific-Atlanta, Inc. Amplifier circuit
US6239656B1 (en) * 2000-01-31 2001-05-29 Matsushita Electric Industrial Co., Ltd. Power amplifier
US6856796B2 (en) 2001-01-25 2005-02-15 Regents Of The University Of Minnesota High linearity circuits and methods regarding same
US6538509B2 (en) * 2001-03-09 2003-03-25 Dragonwave Inc. Linearizer for a power amplifier
JP2003243939A (ja) * 2002-02-14 2003-08-29 Seiko Epson Corp 歪み補償回路
US6794939B2 (en) * 2002-05-31 2004-09-21 Lucent Technologies Inc. Signal predistortion using a combination of multiple predistortion techniques
CN100388623C (zh) * 2003-07-15 2008-05-14 福州大学 平行式失真信号发生器及其功放应用电路
US20060001485A1 (en) * 2004-07-02 2006-01-05 Icefyre Semiconductor Corporation Power amplifier
CN102281408A (zh) * 2011-08-16 2011-12-14 福建三元达通讯股份有限公司 一种户外型高效率数字电视发射机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6612386A (pt) * 1966-09-02 1968-03-04
US3693109A (en) * 1971-12-13 1972-09-19 Bell Telephone Labor Inc Push-pull feed-forward amplifier
FR2312152A1 (fr) * 1975-05-23 1976-12-17 Lgt Lab Gen Telecomm Generateur de produits de non linearite et precorrecteur de systeme de transmission utilisant un tel generateur
GB1542081A (en) * 1976-08-19 1979-03-14 Standard Telephones Cables Ltd Feedforward amplifiers
FR2394214A1 (fr) * 1976-10-13 1979-01-05 Cit Alcatel Procede de compensation du bruit d'intermodulation et dispositifs pour sa mise en oeuvre
FR2415923A2 (fr) * 1978-01-25 1979-08-24 Cit Alcatel Procede de compensation du bruit d'intermodulation et dispositifs pour sa mise en oeuvre
DE3002995C2 (de) * 1979-02-13 1983-09-29 Nippon Telegraph & Telephone Public Corp., Tokyo Anpassbares Entzerrungssystem

Also Published As

Publication number Publication date
MX154909A (es) 1987-12-30
DE3164544D1 (en) 1984-08-09
FR2482799B1 (pt) 1985-04-05
US4392252A (en) 1983-07-05
FR2482799A1 (fr) 1981-11-20
EP0040127B1 (fr) 1984-07-04
EP0040127A1 (fr) 1981-11-18

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19960513